Serena Williams' rep has confirmed that the tennis superstar is expecting a baby after she posted a photo on Snapchat of her growing baby bump. Williams was 8 weeks pregnant in January when she won The Australian Open. Williams will miss the rest of the 2017 tennis season, but she's expected back on the court next year. In December, the 35-year-old got engaged to Reddit co-founder Alexis Ohanian, who is the father of the child.